The National Investigation Agency (NIA) on December 16 filed a supplementary charge sheet against an accused in a case related to Communist Party of India-Maoist (CPI-Maoist) activities in Assam, reports The Print. Samrat Chakraborty alias Nirman alias Nilkamal Sikdar, a resident of West Bengal, has been charge-sheeted under various sections of the Indian Penal Code (IPC) and the Unlawful Activities Prevention Act (UAPA), a spokesperson of the NIA said. “He was part of the conspiracy hatched by the CPI(Maoist) leadership to expand its organisational set-up and operational base in Assam. He stayed at various hideouts in Cachar district of Assam with the intention to expand and strengthen the CPI(Maoist) organisation and worked as a link between the leadership of CPI(Maoist) organisation in different regions,” the spokesperson stated. The case was initially registered at the Crime Branch Police Station in Guwahati and re-registered by the NIA on March 16. Earlier, the NIA had filed charge sheet against six accused persons in connection with the case on September 2.